870665241600 has 3960 divisors, whose sum is σ = 4411642324320. Its totient is φ = 167215104000.

The previous prime is 870665241583. The next prime is 870665241613. The reversal of 870665241600 is 6142566078.

870665241600 is a `hidden beast` number, since 8 + 7 + 0 + 66 + 524 + 1 + 60 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3960).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 21235737580 + ... + 21235737620.

It is an arithmetic number, because the mean of its divisors is an integer number (1114051092).

Almost surely, 2^870665241600 is an apocalyptic number.

870665241600 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870665241600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2205821162160).

870665241600 is an abundant number, since it is smaller than the sum of its proper divisors (3540977082720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

870665241600 is a wasteful number, since it uses less digits than its factorization.

870665241600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 870665241600 in words is "eight hundred seventy billion, six hundred sixty-five million, two hundred forty-one thousand, six hundred".